PangoBidiType: L: Left-to-Right LRE: Left-to-Right Embedding LRO: Left-to-Right Override R: Right-to-Left AL: Right-to-Left Arabic RLE: Right-to-Left Embedding RLO: Right-to-Left Override PDF: Pop Directional Format EN: European Number ES: European Number Separator ET: European Number Terminator AN: Arabic Number CS: Common Number Separator NSM: Nonspacing Mark BN: Boundary Neutral B: Paragraph Separator S: Segment Separator WS: Whitespace ON: Other Neutrals
PangoDirection: LTR: A strong left-to-right direction RTL: A strong right-to-left direction